/*
 *
 * Copyright (C) 2012 Walter Lütgenau
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */
package offset.nodes.maven.nodetype;

import java.io.IOException;
import java.io.OutputStream;

public class JavaPrinter {

    OutputStream out;
    int indentLevel;
    String indent = "   ";

    public JavaPrinter(OutputStream out) {
        this.out = out;
    }

    public void incrementIndent() {
        indentLevel++;
    }

    public void decrementIndent() {
        indentLevel--;
    }

    public void append(String s) throws IOException {
        out.write(s.getBytes());
    }

    public void print(String s) throws IOException {
        for (int i = 0; i < indentLevel; i++) {
            append(indent);
        }
        append(s);
    }

    public void appendLine() throws IOException {
        append("\n");
    }

    public void printLine(String s) throws IOException {
        print(s);
        appendLine();
    }

    public void printLines(String[] lines) throws IOException {
        for (String line : lines) {
            printLine(line);
        }
    }

    public void close() throws IOException {
        out.flush();
        out.close();
    }
}
